The effects of neutrophil depletion on a completely noninvasive model of acute pancreatitis-associated lung injury

Madhav Bhatia, Ashok K. Saluja, Bernd Hofbauer, Hong Sik Lee, Jean Louis Frossard, Michael L. Steer

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Conclusion. A completely noninvasive animal model of acute pancreatitis- associated lung injury was used to show that neutrophils, activated by pancreatitis, play a key role in mediating pancreatitis-associated lung injury. Background. Significant pulmonary complications have been known to occur in over 50% of patients with severe acute pancreatitis. Recent studies using a variety of animal models of pancreatitis have suggested that neutrophil activation may play an important role in mediating lung injury. However, in these models, the interpretation of the results is complicated because surgical manipulations alone could have resulted in the activation of neutrophils. Methods. Young female mice were fed a choline deficient ethionine (CDE) supplemented diet. The severity of pancreatitis was evaluated by measuring hyperamylasemia, acinar cell necrosis, and pancreatic myeloperoxidase activity. Lung injury was quantified by measuring lung microvascular permeability and lung myeloperoxidase activity. To evaluate the role of neutrophils in CDE diet-induced pancreatitis-associated lung injury, animals were pretreated with antineutrophil serum. Results. Mice fed the CDE diet develop pancreatitis-associated lung injury. Pretreatment of mice with antineutrophil serum results in marked depletion of circulating neutrophils. Under these conditions, the severity of pancreatitis is reduced and lung injury is completely prevented.

Original languageEnglish
Pages (from-to)77-83
Number of pages7
JournalInternational Journal of Pancreatology
Volume24
Issue number2
Publication statusPublished - 1998 Nov 23
Externally publishedYes

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Keywords

  • Acute pancreatitis
  • CDE diet
  • Lung injury
  • Myeloperoxidase
  • Neutrophil sequestration

ASJC Scopus subject areas

  • Oncology
  • Endocrinology
  • Gastroenterology

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